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74696 (1999 RR141)
Classification: Main-belt Asteroid          SPK-ID: 2074696
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1818923630446924 3.8465e-08  
a 2.141416548165891 8.3779e-09 au
q 1.751909231956989 7.942e-08 au
i 1.505084515633491 4.0219e-06 deg
node 325.7162484415624 0.00016546 deg
peri 339.8273691873458 0.0001667 deg
M 242.7931681680236 2.447e-05 deg
tp 2459373.149535847999
(2021-Jun-07.64953585)
7.9231e-05 TDB
period 1144.590556782541
3.13
6.717e-06
1.839e-08
d
yr
n .3145229513442472 1.8458e-09 deg/d
Q 2.530923864374794 9.9018e-09 au
  Orbit Determination Parameters
   # obs. used (total)      818  
   data-arc span      8617 days (23.59 yr)  
   first obs. used      1996-09-17  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51681  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:07:52  

Additional Information
 Earth MOID = .736957 au 
 Jupiter MOID = 2.70119 au 
 T_jup = 3.691 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO412636  

74696 (1999 RR141)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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